:root{--bg: #0d0d0d;--panel: #141414;--hairline: #262626;--text: #e6e4de;--muted: #6d6a63;--accent: #dd5a22;--accent-dim: #7a3a1c;--sans: "Helvetica Neue", Helvetica, Arial, "Inter", system-ui, sans-serif;--mono: "IBM Plex Mono", ui-monospace, "SF Mono", monospace;--handle-h: 26px;--drawer-dur: .4s;--drawer-ease: cubic-bezier(.4, 0, .2, 1)}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%}body{background:var(--bg);color:var(--text);font-family:var(--sans);-webkit-font-smoothing:antialiased;overflow:hidden}#app{display:grid;grid-template-rows:auto 1fr;height:100vh;height:100dvh}#header{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;padding:22px 28px 18px;border-bottom:1px solid var(--hairline)}.title-block h1{font-size:15px;font-weight:500;letter-spacing:.42em;text-indent:.42em}.subtitle{margin-top:6px;font-family:var(--mono);font-size:10.5px;letter-spacing:.04em;color:var(--muted)}#telemetry{display:flex;gap:30px}#telemetry div{text-align:right}#telemetry dt{font-family:var(--mono);font-size:9px;letter-spacing:.18em;color:var(--muted)}#telemetry dd{font-family:var(--mono);font-size:15px;font-weight:500;margin-top:3px;font-variant-numeric:tabular-nums}#stage{position:relative;overflow:hidden}#river{display:block;width:100%;height:100%}#hint{position:absolute;bottom:calc(var(--handle-h) + 14px);left:50%;transform:translate(-50%);font-family:var(--mono);font-size:10px;letter-spacing:.06em;color:var(--muted);pointer-events:none;transition:opacity .6s ease}#hint.hidden{opacity:0}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}#third-faces{position:static;display:flex;flex-direction:row;align-items:center;gap:4px;border:0;padding:0;margin:0;background:transparent;pointer-events:auto}#third-faces label{display:inline-flex;align-items:center;justify-content:center;color:var(--muted);cursor:pointer;line-height:0;opacity:.55;border-bottom:1px solid transparent;padding-bottom:1px;transition:color .15s ease,opacity .15s ease,border-color .15s ease}#third-faces label:hover{color:var(--text);opacity:.8}#third-faces input:checked+label{color:var(--text);opacity:1;border-bottom-color:var(--muted)}#third-faces input:focus-visible+label{outline:1px solid var(--muted);outline-offset:2px}#rail{position:absolute;left:0;top:0;height:100%;width:108px;pointer-events:none;background:transparent;z-index:5}.track-cell{position:absolute;left:0;display:flex;align-items:center;justify-content:flex-end;gap:8px;padding-right:10px;pointer-events:none}.track-label{display:inline-flex;align-items:center;gap:4px;font-family:var(--mono);background:transparent;border:0;padding:2px 0;cursor:pointer;pointer-events:auto;text-transform:uppercase;transition:color .15s ease}.track-label.is-drum{color:#9a978e;letter-spacing:.1em}.track-label.is-drum .track-name{font-size:13px}.track-label.is-perc{color:#e6e4ded9}.track-label.is-perc .track-name{font-size:15px}.track-label:hover,.track-label:focus-visible,.track-label[aria-expanded=true]{color:var(--text);outline:none}.track-label .caret{font-size:9px;color:var(--muted);opacity:0;transition:opacity .15s ease}.track-label:hover .caret,.track-label:focus-visible .caret,.track-label[aria-expanded=true] .caret{opacity:1}.track-menu{position:absolute;z-index:30;margin:0;padding:4px 0;list-style:none;min-width:132px;background:var(--panel);border:1px solid var(--hairline);pointer-events:auto;display:none}.track-menu.open{display:block}.track-menu:focus{outline:none}.menu-branch{position:relative;display:flex;align-items:center;justify-content:space-between;gap:12px;font-family:var(--mono);font-size:11px;letter-spacing:.06em;color:var(--muted);padding:8px 12px;cursor:pointer;white-space:nowrap}.menu-branch:hover,.menu-branch:focus-within,.menu-branch.open{background:#1a1a1a;color:var(--text)}.branch-caret{font-size:10px;color:var(--muted)}.menu-branch:hover .branch-caret,.menu-branch:focus-within .branch-caret,.menu-branch.open .branch-caret{color:var(--text)}.submenu{position:absolute;left:calc(100% - 1px);top:-1px;z-index:1;margin:0;padding:4px 0;list-style:none;background:var(--panel);border:1px solid var(--hairline);pointer-events:auto;display:none;max-height:60vh;overflow-y:auto}.menu-branch:hover>.submenu,.menu-branch:focus-within>.submenu,.menu-branch.open>.submenu{display:block}.submenu--voices{min-width:156px}.submenu--voices li{position:relative;font-family:var(--mono);font-size:11px;letter-spacing:.03em;color:var(--muted);padding:8px 12px 8px 22px;cursor:pointer;white-space:nowrap}.submenu--voices li:hover,.submenu--voices li.active{background:#1a1a1a;color:var(--text)}.submenu--voices li[aria-selected=true]{color:var(--text)}.submenu--voices li[aria-selected=true]:before{content:"›";position:absolute;left:10px;color:var(--text)}.submenu--volume{width:190px;padding:14px}.volume-control{display:flex;flex-direction:column;gap:10px}.volume-control .param-label{display:flex;align-items:baseline;justify-content:space-between;gap:12px}.volume-readout{font-family:var(--mono);font-size:11px;color:var(--text);font-variant-numeric:tabular-nums}.volume-slider{-webkit-appearance:none;appearance:none;width:100%;height:1px;background:var(--hairline);cursor:pointer}.volume-slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:3px;height:12px;background:var(--accent);border:none;border-radius:0}.volume-slider::-moz-range-thumb{width:3px;height:12px;background:var(--accent);border:none;border-radius:0}#tips-toggle{position:absolute;top:10px;right:12px;z-index:6;width:22px;height:22px;display:grid;place-items:center;font-family:var(--mono);font-size:11px;line-height:1;color:var(--accent);background:transparent;border:1px solid var(--accent);border-radius:0;cursor:pointer;opacity:.7;transition:opacity .15s ease,color .15s ease,border-color .15s ease}#tips-toggle:hover{opacity:1}#tips-toggle.off{color:var(--muted);border-color:var(--hairline)}[data-tip]{position:relative}[data-tip]:after{content:attr(data-tip);position:absolute;left:50%;bottom:calc(100% + 8px);transform:translate(-50%) translateY(4px);width:max-content;max-width:220px;padding:6px 8px;font-family:var(--mono);font-size:10px;line-height:1.35;letter-spacing:.01em;color:var(--text);background:var(--panel);border:1px solid var(--hairline);white-space:normal;text-align:left;pointer-events:none;opacity:0;z-index:50;transition:opacity .15s ease,transform .15s ease}[data-tip]:hover:after,[data-tip]:focus-within:after{opacity:1;transform:translate(-50%) translateY(0)}#third-faces [data-tip]:after{left:0;transform:translate(0) translateY(4px)}#third-faces [data-tip]:hover:after,#third-faces input:focus-visible+[data-tip]:after,#third-faces input:focus+[data-tip]:after{opacity:1;transform:translate(0) translateY(0)}body.tips-off [data-tip]:after{content:none}#controls{position:fixed;left:0;right:0;bottom:0;z-index:20;background:var(--panel);transform:translateY(0);transition:transform var(--drawer-dur) var(--drawer-ease)}body.drawer-collapsed #controls{transform:translateY(calc(100% - var(--handle-h)))}#drawer-handle{display:grid;place-items:center;grid-auto-flow:column;justify-content:center;gap:10px;width:100%;height:var(--handle-h);background:transparent;border:0;border-top:1px solid var(--hairline);cursor:pointer}.handle-grip{width:28px;height:2px;background:var(--muted);transition:background .15s ease}#drawer-handle:hover .handle-grip{background:var(--text)}.handle-label{font-family:var(--mono);font-size:9px;letter-spacing:.18em;color:var(--muted)}#drawer-handle .caret{font-size:9px;color:var(--muted)}.drawer-body{padding:10px 28px 12px}.transport{display:flex;gap:10px}.btn{font-family:var(--mono);font-size:11px;letter-spacing:.14em;color:var(--text);background:transparent;border:1px solid var(--hairline);padding:9px 16px;cursor:pointer;transition:border-color .15s ease,color .15s ease,background .15s ease}.btn:hover{border-color:var(--muted)}.btn.active{color:var(--bg);background:var(--accent);border-color:var(--accent)}.params{display:flex;flex-wrap:wrap;align-items:flex-start;gap:12px 28px;flex:1}.param-group{display:flex;flex-direction:column;gap:6px}.param-group+.param-group{padding-left:28px;border-left:1px solid var(--hairline)}.group-cap{font-family:var(--mono);font-size:9px;letter-spacing:.18em;color:var(--muted)}.group-items{display:flex;flex-wrap:wrap;gap:8px 22px}.param{display:grid;grid-template-columns:auto 1fr;grid-template-rows:auto auto;column-gap:12px;align-items:center;min-width:132px;flex:1 1 150px}.param-label{grid-column:1;grid-row:1;font-family:var(--mono);font-size:11px;letter-spacing:.16em;color:#b6b3aa}.param-val{grid-column:2;grid-row:1;justify-self:end;font-family:var(--mono);font-size:11px;color:var(--text);font-variant-numeric:tabular-nums}.param input[type=range]{grid-column:1 / 3;grid-row:2;margin-top:5px;-webkit-appearance:none;appearance:none;width:100%;height:1px;background:var(--hairline);cursor:pointer}.param input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:3px;height:10px;background:var(--accent);border:none;border-radius:0}.param input[type=range]::-moz-range-thumb{width:3px;height:10px;background:var(--accent);border:none;border-radius:0}@media (max-width: 860px){.params{flex-wrap:wrap;gap:12px 24px}.param-group+.param-group{padding-left:0;border-left:0}#telemetry{gap:18px}}